Dearest Horde:
I recently took my new 6.5G pistol build to the range for a test run but encountered some issues I would appreciate your suggestions to help resolve. First, the pertinent specifications:
- 12" Faxon group buy barrel (carbine length gas system and I believe .075 gas port)
- Ergo adjustable gas block (bedded with blue loktite)
- Muzzle device is flash can with krinkov type brake (think Noveske flaming pig)
- Standard carbine buffer and spring in kak shockwave blade buffer tube
So I set out to adjust my gas block by loading one round in a magazine to see if the bolt locked back on the empty mag. Starting with the gas block about half way open, I fired two rounds of Hornady black and the bolt properly locked back both times.
When I moved on to Wolf steel cased ammo, the bolt only locked about 3/4 to 2/3 of the way back. I wasn't terribly surprised, and figured I would just gradually open the gas block until it functioned properly with the Wolf. To save a long and frustrating story of subsequent adjustments, I ended up with the gas block fully open with no apparent improvement with the Wolf. I did intermittently try the Hornady again, which continued to lock the bolt back on all settings, as well as several different Elander mags to make sure it wasn't an issue with how the Wolf feeds from a specific mag. When I loaded 5-10 rounds of Wolf at a time it would feed, but something like 20% of the time a round would not be stripped from the mags at all.
My hypothesis is that I was short stroking with the less powerful Wolf. When I got home I realigned the gas block with the barrel gas port using the toothpick method. The gas block is in a slightly different position now, not so much so that it was clearly misaligned enough to cause the short stroking, but that is my best guess at the moment.
Has anyone experienced this problem with a similar setup or do you have any suggestions as to other culprits? Perhaps the Wolf was resisting extraction and thereby slowed the BCG's rearward travel? Any ideas as to what else I can look at before I make another trip to the range will be appreciated.
I recently took my new 6.5G pistol build to the range for a test run but encountered some issues I would appreciate your suggestions to help resolve. First, the pertinent specifications:
- 12" Faxon group buy barrel (carbine length gas system and I believe .075 gas port)
- Ergo adjustable gas block (bedded with blue loktite)
- Muzzle device is flash can with krinkov type brake (think Noveske flaming pig)
- Standard carbine buffer and spring in kak shockwave blade buffer tube
So I set out to adjust my gas block by loading one round in a magazine to see if the bolt locked back on the empty mag. Starting with the gas block about half way open, I fired two rounds of Hornady black and the bolt properly locked back both times.
When I moved on to Wolf steel cased ammo, the bolt only locked about 3/4 to 2/3 of the way back. I wasn't terribly surprised, and figured I would just gradually open the gas block until it functioned properly with the Wolf. To save a long and frustrating story of subsequent adjustments, I ended up with the gas block fully open with no apparent improvement with the Wolf. I did intermittently try the Hornady again, which continued to lock the bolt back on all settings, as well as several different Elander mags to make sure it wasn't an issue with how the Wolf feeds from a specific mag. When I loaded 5-10 rounds of Wolf at a time it would feed, but something like 20% of the time a round would not be stripped from the mags at all.
My hypothesis is that I was short stroking with the less powerful Wolf. When I got home I realigned the gas block with the barrel gas port using the toothpick method. The gas block is in a slightly different position now, not so much so that it was clearly misaligned enough to cause the short stroking, but that is my best guess at the moment.
Has anyone experienced this problem with a similar setup or do you have any suggestions as to other culprits? Perhaps the Wolf was resisting extraction and thereby slowed the BCG's rearward travel? Any ideas as to what else I can look at before I make another trip to the range will be appreciated.
Comment